Improved refrigerator



N4 PETERS. PHOTO-LITHOGRAPHER, WASHINGTON. D CA v waited Stat-w @anni ctljiiw.'

EDWARD S. OOLTON, OF BOSTON, MASSACHUSETTS, ASSIGNOR OOLTON vREFRlGrERATOR COMPANY, OF SAME PLACE.

TO THE Letters Patent No. 101,588, dated April 5, 1870.

IMPRQVRD REFRIGERATOR.

The Schedule referred to in these Letters Patent and making part of the same To all whom it may concern.-

This invention is an improvement ou my patent No, 69,971, dated October 22, 1867, and consists of celtain details -of construction, which will be more fully described hereinafter.

I construct my refrigerator in the following manner and of the following materials:

.lhe outer casing A is composed of boards of about three-fourths'of an inch in thickness, within which is a similar casing, B, of half-inch boards.

-Between the casings A and B is a space of twoA inches, which is lled -with feltor other like material, C.

`D represents a third casing of boards within the casil; B, which constitutes the refrigeratingfchamber Into the space between the casings B and D, which is about two inches wide, is introduced a sheet-metal .water-tank, E.

F represents the roof or cover of the chamber D', which rests upon the upper edge of the casing D, its edges projecting over the tank E.

. The cover F is made of the hip-roof form, as shown in hg. 2, and is provided with a box or ice-receptacle, G, on its upper side, which box may be secured'thereto or otherwise, an outlet for the water which accumulates therein being provided.

F is a gutter for carrying off the condensed moisture which accumulates on the lower side of the roof- F. v

The receptacle G is iilled with a mixture of iceand salt, or icealone, if preferred, and, by reason' of its peculiar forni, radiates, as it were, the intense cold caused by the melting of the ice into the chamber D'; meanwhile the water, which falls from the-projecting eaves of the roof F, keeps the contents of the tank E at a low temperature, while the metal of the tank is protected from injurious effects from condensed moisture, and the atmosphere of the chamber is kept dry by means of the wooden casing D, thus enabling the waterto be utilized for cooling-purposes, Without imparting, moisture to the air or injuring the walls of the tank.

rlhe tank E extends around three sides of the refv witnesses.

EDWARD S. COLTON. i Witnesses CARROLL DIWRIGHT, CHARLES F. BROWN. 

